adding APIKey method

rowers/authentication.py

@@ -0,0 +1,15 @@
+from rest_framework.authentication import BaseAuthentication
+from rest_framework.exceptions import AuthenticationFailed
+from rowers.models import APIKey
+
+class APIKeyAuthentication(BaseAuthentication):
+    def authenticate(self, request):
+        api_key = request.META.get('HTTP_AUTHORIZATION')
+        if not api_key:
+            return None
+        try:
+            api_key = APIKey.objects.get(key=api_key, is_active=True)
+        except APIKey.DoesNotExist:
+            raise AuthenticationFailed('Invalid API key')
+
+        return (api_key.user, None)